a NOVA production by the New York Times/Granada Factuals USA and Lone Wolf Pictures, Inc., for WGBH/Boston in association with Channel 4 ; directed by Kirk Wolfinger ; produced & written by Matthew Collins
a co-production of the WGBH/NOVA Science Unit and Clear Blue Sky Productions ; written by Joel Olicker and Chris Schmidt ; produced and directed by Joel Olicker
a co-production of the WGBH/NOVA Science Unit and Clear Blue Sky Productions ; written by John Heminway, produced by John Heminway & Michelle Nicholasen
photographed by Lennart Nilsson ; written by Thomas Friedman ; directed by Mikael Agaton ; produced by Mikael Agaton, Thomas Friedman, Lars Rengfelt ; a coproduction between Swedish Television ... [and others] ; WGBH Boston
a PBS digital presentation ; a Gemini Productions film for the WGBH/Nova Science Unit and Clear Blue Sky Productions ; written and directed by Gail Willumsen ; produced by Jill Shinefield, Gail Williamson
photographed by Lennart Nilsson ; written by Thomas Friedman ; directed by Mikael Agaton ; produced by Mikael Agaton, Thomas Friedman, Lars Rengfelt ; produced by Wanngärd AB and Bo G. Erikson Productions ; a co-production between Swedish Television ... [and others] ; WGBH Boston
a co-production of WGBH Boston, Central Independent Television/U.K. and Antenne- 2, France, in association with LRE Productions ; executive producer, Richard Ellison ; chief correspondent, Stanley Karnow ; director of media research, Lawrence Lichty
a co-production of the WGBH/NOVA Science Unit and Clear Blue Sky Productions ; written and directed by David Espar and Susan K. Lewis; produced by Linda Garmon